How To Fix 29139 - PM assembly required for item category &

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 139

• Message text: PM assembly required for item category &

What causes this issue?

You want to delete the <ZH>PM assembly</> indicator for an item entered
with item category &V1&. Since this item is a structure element that is
relevant to plant maintenance, you cannot delete this indicator.

How to fix this error?

Select the <ZH>PM-assembly</> indicator again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29139 - PM assembly required for item category & ?

  The SAP error message 29139, which states "PM assembly required for item category &," typically occurs in the context of the Plant Maintenance (PM) module when there is an attempt to process a transaction that requires an assembly (or a bill of materials) for a specific item category, but the necessary assembly information is not available or not properly configured.
  Cause:
  
  Missing Assembly Data: The item category you are trying to use does not have an associated assembly or bill of materials (BOM) defined in the system.
  Incorrect Configuration: The configuration for the item category may not be set up to allow for the use of assemblies.
  Master Data Issues: The material master data for the item category may be incomplete or incorrectly maintained.
  Transaction Context: The transaction you are trying to execute may inherently require an assembly, but the system cannot find one.
  
  Solution:
  
  
  Check Item Category Configuration:
  
  Go to the configuration settings for the item category in the SAP system (Transaction code: OMCQ or similar).
  Ensure that the item category is configured to allow for assemblies.
  
  
  
  Create or Update Assembly Data:
  
  If the assembly data is missing, create a new assembly or BOM for the item category using Transaction code CS01 (Create BOM).
  Ensure that the assembly is correctly linked to the item category.
  
  
  
  Review Material Master Data:
  
  Check the material master data for the item category using Transaction code MM03 (Display Material).
  Ensure that all necessary fields are filled out correctly, especially those related to the BOM and assembly.
  
  
  
  Check Transaction Context:
  
  Review the specific transaction you are trying to execute to ensure that it is appropriate for the item category in question.
  If the transaction is not meant to require an assembly, investigate why the system is expecting one.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for further details on the specific item category and its requirements.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for assistance, as they may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), CS03 (Display BOM), MM01 (Create Material), and MM03 (Display Material).
  SAP Notes: Check for any SAP Notes related to error message 29139 for potential patches or updates that may address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed and resolved.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.